Wrench



Jam. 11, 1927.

W. S. BELLOWS WRENCH Filed March 10. 1922 Patented Jan. 11, 1927.

UNITED STATES PATENT OFFICE.

WORCESTER, INCORPORATED, OF WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

WRENCH.

Appiication ined March 1o, 1922.A serial No. 542,544.

This invention relates to wrenches and is particularly concerned with certain improvements in wrenches ot the type provided with sockets which are pivotally associated with the shank or" the wrench.

A good understanding of the invention may be had trom the following description of certain forms of embodiment thereof, particular reference being'had to the accompanying drawings, in which: c

Figure 1 is a view illustrating one form ot embodiment of the invention;

Figure 2 is a View showing a side elevation ot the lowermost part of Figure 1; K

Figure 3 is a view showing a modified manner ot mounting the wrench socketV on the shank; Y

Figures 4, 5 and 6 are views showing one modification ot' Figure 3; and

Figures 7, 8 and 9 are views showing another modificationv of Figure 3.

Similar characters ot reference designate similar parts in each of theseveral views.

The wrench illustrated in Figure 1 comprises a shank 1 ofsteel rod or vrstout wire, and a pair ot socket members 2 and 3 pivotally mounted on the ends of the shank, these ends being` bent over as indicated at Z) (Figure 2) and being upset to retain the socket members in place. Both socket members are double-ended, being provided with openings A, B and C, D, respectively, these openings being shaped to accommodate nuts or bolts ot diierent sizes or shapes, so that a single wrench may be put to a large variety ot uses.

Intermediate its ends the shank is provided with iiattened portions k5 and 67 the planes ot which are preferably at right angles to each other, as shown. Openings 7 and 8 are provided in these portions for receiving a detachable lever 9 which may be employed for exerting substantial leverage on the bolt or nut which is being operated upon. For example, in the position ot the wrench indicated in Figure 1, the lever 9 serves to render the wrench capable ot being used inthe same manner as the so-called T-handle wrench, so that considerable torce may be exerted on a bolt or nut received within socket D or C, according to the position ot the member 3. By inserting the lever rod 9 into opening 7, the same e'iects may be had with reference to sockets A or B.

Figure 3 illustrates a method of mounting the sockets on the wrench in a detachable manner. In this formof embodiment ot the invention the shank 1 extends into a ballshaped head 12 andis fixed therein in any suitable manner. The socket member 13 is pivotally mounted onva stud 14 extending laterally from head 12. This stud extends through an opening insocket 13 so that the latter is free to turn thereon. To hold the socket on the stud the latter is provided Awith a transverse opening 15 in which is provided a spring 1G which serves to force a pair ot' balls 17 and 18 'outwardly'into a circular groove 19 provided vin the socket member. The socket is thus tree to turn on stud 14 but can be removed therefromT only by the application of force sufficient to cause the balls to enter completely into opening 15. TheV ends ot' the wallof the opening 15 are hammered over as indicated in the drawing, to prevent the lossot the balls' when the socket is removed from the stud. A screw 2O maybe provided for rendering the attachment of the socket member more permanent, this screw being provided `with a tapered edge21 which engages a corresponding seat in member 13. A collar 22 on stud 14 cooperates with a corresponding enlargement in the opening 13 to form abearing surface for the side of the socket adjacent the shank.

Figures 4, 5 and 6 illustrate a manner in which the ball-shaped head 12al may be mounted on the shank 1 so as to be detachable therefrom. In this form of construction the head is provided with an opening 23 into which the end of shank 1 may be inserted. A pin 24 is provided adjacent the end of the shank and the opening 23 is provided with an enlargement 25 which communicates with a recessed portion 26 in the wall of the opening. By virtue of this construction the head may b-e applied to the shank by turning the same until opening is in registry with pin 24, then pushing the head over the shank and iinally giving' the same a partial turn so that the pin is anchored within the recess 26. A socket member may be mounted on the lateral extension 14 of the head in the manner f es,

indicated in Figure 2. In th-e present form of embodiment of the invention, therefore, the various size sockets are permanently attached to heads l2a and these heads may be detacliably aiiixed to the shank in the manner described.

The modification illustrated in Figures 7, 8 and 9 consists in providing a spring and ball locking device 27 instead of the pin 24, the construction of this locking device being similar to that described in connection with Figure 3. rIhe advantage of this form of locking device consists in the fact that at no position of the head l2ZL will the same become accidentally detached, as the disconnection can be effected only by forcefully propelling the shank out of opening 23.

Although I have herein shown and described only a few specific forms of embodiment of the invention, it will be readily understood that many changes and modifications may be made therein Without departing from the spirit and scope ofv the invention, it being my intention to claim the same broadly in Whatever form its principles may be embodied.

IVhat I claim is:

1. A Wrench comprising a shank, a stud extending at right angles thereto, means for detachably connecting the stud to one end of the shank, a socket member having an opening for receiving said stud, 'said member being free to rotate thereon, and means for detachably connecting the socket member and stud together.

2. A Wrench comprising a shank, a stud, means to attach said stud, at right angles to said shank, said means comprising a member adapted to fit over the end of said shank, a socket member having an opening for receiving said stud, said member being free to rotate thereon, said stud having an opening, a ball in said opening, resilient means for partially projecting said ball from said opening, Vand a recess in said socket member for cooperating with said ball for retaining said socket member on said stud.

3. A Wrench comprising a shank, a stud extending at right angles therefrom, a

socket member having an opening for receiv'- f ing said stud, said member being free to rotate thereon, said stud having an opening, a ball in said opening, resilient means for partially projecting said ball from said opening, -and a recess in said socket member for cooperating with said ball for retaining said socket member on said stud, the end of the Wall of said opening in the stud being slightly turned over to retain said ball' in the opening when said socket member is removed from said stud, and means detachably associated With said stud for engaging' said socket member and preventing removai thereof from said stud.

4. A Wrench comprising a shank, a stud, a socket member freely rotatable upon the stud, and means for detachabiy uniting said stud With said shank, the said uniting means comprising a head secured to the ystud and having a groove therein, and a projection on the shank adapted to enter said groove and co-act therewith to lock the head on the shank.

In testimony whereof I have affixed my signature to this specification.

WARREN S. BELLOIVS. 

